Machine for feeding fibrous material



Feb. 2, 1926.

E. V. BATES MACHINE FOR FEEDING FIBROUS MATERIAL Fild Deo.

i be

Patented Feb. 2, 192e.'

UNITED STATlS PATENT OFFICE.

MACHINE FOR FEEDING FIBROUS MATERIAL.

Application led December 5, 1924. Serial No. 754,154.

T0 all 'whom z't may concern Be it known that I, EDDO V. BATES, a citizen of the United States of America, and a resident ofl Lowell, in the county of Middlelser: and Cominonw'ealth of Massachusetts, have inventedv certain new and useful Improvements in Machines for Feeding Fibrous Material, of which the following is a specification.

This invention relates to feeding mechanism for carding machines and has for one of its objects the production of a feed arranged to so present the stock to the transferring apron that .more accurate and univ formly timed weighings are obtained than with feeds at present in use.

It is av further object of the invention to not only ensure laccurate weighin s when'the stock`chest is approximately .-fulI-l, but to so present the stock to the transferring apron that .accurate and uniformly timed weighingswill alsoresult up to the time the said chest is nearly empty. r

. `A further object ofthe invention is to produce a feed `wherein the stock is presented lto the. transferrin apron, in such manner .that a more even ensity of stock-throughout its depth is attained and kept in contact with the said apron, whereby a more evcn and uniformity of stock removal takes place tharhasteen possible infeeds heretofore Another object of the invention is to. produce a feed wherein stock is presentedto .the

transferring apron at approximately the Ysaine 4speed that the said apron picks it up, and in such manner'that the said apron 1s Lrelieved of undue drag thus-enabling it to pick upv its. load with the least possible damage to the fibres of the stock To the attainment ofthe above objects,A

the invention consists in certain novel fea.-

tures of construction andarrangement `of fgarts which will be fully understood lfrom av eseription of the drawing` and the claim 4hereinafter given.

` Of the drawing:

The drawing herewith represents a vertic al longitudinal section through a l'card feed and shows a suilicient portionof it to enable the invention`to be understood.

Referring to the drawing:`

The drawing shows one make of card feed to whichthe present invention is applicable, but it will be understood that it mi ht be used in other makes and in fact isapp icable to existing feeds, andmay be adjusted therel to at but slight expense and consumption of time.

It will also be understood that changes might be made in the construction and ar rangement shown in the drawing without departing from the spirit and scope of the invention.

In the present instance the 4frame 10, one side of which is shown herein, has mounted Atherein the shafts 11 and 12 carrying the sprockets 13 and 14 arranged to engage and drive t'e sprocket chains 15 of a transferring a on 16, the said shaft 11 being arranged to be driven by a pulley 17 which in turn may be driven from any usual or suitable source. v

The shafts 18 and 19 ae also suitably journalled in the frame 10 and are supplied with sprockets 20 and 21 arranged to drive the chains 22, one of which is shown, of a conveyor belt or a ron 23.

So far,'the devlces described are 'or may be of any usual or suitable construction.

The frame 10, only one side of which is shown, the transferring apron 16, back plate 24, and bottom stock supporting means 25 and 26 form the stock chest. I .i

The bottom stock supporting means comprisesa belt or apron 25 vdriven by chains 28,

only one of which is shown, engaging thel sprockets 29 and 30 of the shafts 31 and 32,

'and the adjustable inclined board 26 shown -as pivoted at 33 to brackets 34 adjustably mounted on the frame 10, its lower end resting on a conveniently positioned rod or shaft 35. i i I V :A `grid 36 is provided which however is Apivotally mounted on the frame at 37 and ing 'ts power from the shaft 18 through a.

spro ket chain as indicated at 40. o v

It is intended that -the apron 25rshall be drivenl at a.' speed to carry the stock toward the apron 16 as rapidly as it is' taken -up by it, by which arrangement the pressure of stockl against the apron 16 is practically constant and results in less damage to the fibres of the stock, as unnecesysary drag.. is not im osedA upon the teeth of the said apron w 'ch would causefthe teeth to tear their way `through the stock of the' stock inthe chest, gradually movremoved thereby,

ing it toward the a ron 16 to replenish stock nally delivering it in 'a progressive column to the (pocket `fbrme'd 1n part by the board -26, own which 1t travels by the force of gravityl at a speed equal to the removal of stock by the/said apron 16 anad the speed of thea ron 25. By this arran ement it will be readily seen that the stoc which ma have attained a certain compactness or ensity while bei ing carrid by the apron 25`will be relieved of its compactness w en it reaches the pocket and w1ll assume a more even density throughout the height of the column be- 5 cause of the upward drag imposed upon .it by the teeth of the apron 16 and the action of -kgravity which gradually but ef\ ectively relieves the stock adjacent the apron 25 of its attained compactness, and by reason of the steady .and regular advance of the stock towards the apronv 16` auniform pressure and density ,of the stock is attained which results in -more even dis- Aless damage to the fibre t an tribution of stock on the a ron 16 and more regular and accurate wei in s with much as been possible in feeds heretofore used. ,c

The id 36 is-'arranged to catch any stock t at might otherwise Idro lto `thefloor, and is mounted in a tiltab emanner whereby l clear it of any foreign' matter that might accumulate thereon. i v

-It is known that bottom stock supports such as- -thema ron- 25 have been used in v feeds of thisc ass,and.lthat inclined back vide a relativelys sha chest and to support the major portion of it may be downwardly swun tov plates have been used 'to fdirect the stock downwardlyv and toward the transferring apron2 but in each instance the weighings were lrregular and consequently real satisfactory feed was not'jobtained.` v

'So far as is knownvit is new Ain the art to use a bottom support for the stock comprising the combmation of a travelling apron such as 25 which delivers the stoc to a pocket, formed in part by an incline such as the board 26at which place the stock will automatically regulate its own density or'compactness just prior to being taken up by the teeth of the transferring apron 16, and an incline of anysort whetherA moving onstationar In view of( the a ove itwill be understood that it `is niet the intention to limit the invention tothe precise construction and arrangement shown as it is pssible to' make v changes therein without departing fromv its spirit and scope.

vHavi-ng described the invention, I claim:

A machine for feeding fibrous material having a stock chest the bottom -of which comprises an endless apron arrangedfto prolow portion of said the stock therem and`move it towards la transferring apron `in ,said chest, and a downwardly and rearwardly y.. extending membei arranged to receive stock-.from said endless apron and direct it into la pocket formed in part by said member; means to adjust the angularity of said .inembem a transferring"v a ronin said chest arranged to remove sto'c directed towards by said endless apron andsaid member; .land-means to `drive said endless apron.

)Signed by vme atLowell, Massachusetts, this 29th day lof November, 1924. y EDDO V. BA'TES. j 

